The price I think that high.
By using this punch now Reraru so open the comparatively easy square hole.
Are using was quite old type of HP-1 But available.
Pilot hole is must be a hole of 16φ. I think that if there is also a description of the neighborhood of was wondering what is good in 10φ.
To those who are able to drill a hole of 45 square frequently I would say.

Same commodity has come out a large number, but the price is high.
This product is satisfactory sharpness, accuracy both at a low price.
50 corners, until the circle has been doing in this (2.5mm iron plate).